Chapter 4 Flashcards
1
Q
deoxyribonucleic acid, a molecule that is present in all living cells and contains the information that determines the traits that a living thing inherits and needs to live
A
DNA
2
Q
in a nucleic- acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base
A
nucleotide
3
Q
ribonucleic acid, a molecule that is present in all living cells and that plays a role in protein production
A
RNA
4
Q
a cell organelle composed of RNA and protein; the site of protein synthesis
A
ribosome
5
Q
a change in the nucleotide-base sequence of a gene or DNA molecule
A
mutation
